Save Image File with PHP & MySQL - #4

list.php

<div class="container mt-5">
    <div class="row">
        <div class="col-md-8 border-right">
            <ul class="list-unstyled">
                <?php for($i = 0; $i < count($images); $i++): ?>
                    <li class="media mt-5">
                        <a href="#lightbox" data-toggle="modal" data-slide-to="<?= $i; ?>">
                            <img src="image.php?id=<?= $images[$i]['image_id']; ?>" width="100" height="auto" class="mr-3">
                        </a>
                        <div class="media-body">
                            <h5><?= $images[$i]['image_name']; ?> (<?= number_format($images[$i]['image_size']/1000, 2); ?> KB)</h5>
                            <a href="#"><i class="far fa-trash-alt"></i> 削除</a>
                        </div>
                    </li>
                <?php endfor; ?>
            </ul>
        </div>
        <div class="col-md-4 pt-4 pl-4">
            <form method="post" enctype="multipart/form-data">